Gangaur Festival is one of the most colourful carnivals celebrated at Deshnok as well as in the whole Rajasthan. This popular fair is held in honour of the Hindu deity Gauri Mata. It is celebrated mostly by women for the welfare of their husbands. The Gangaur Festival is held for 18 days in the month of March. As a part of the festivities, women decorate their hands and foot with mehandi (an aromatic paste of Henna leaves).